Effects of the shape properties of talc and quartz particles on the wettability based separation processes

Shape properties of talc and quartz particles ground by a laboratory size ball, rod, and autogenous mills were studied using scanning electron microscope (SEM). More than 100 particles were measured to do the shape analysis of each mill product. The wettability behavior of ( γ c) a highly hydrophobi...

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Bibliographic Details
Published in:Applied surface science 2004-06, Vol.233 (1), p.204-212
Main Authors: Hiçyilmaz, C, Ulusoy, U, Yekeler, M
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Flotation
Particle
Particle processing
Physics
Separations
Shape property
Wettability
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Summary:Shape properties of talc and quartz particles ground by a laboratory size ball, rod, and autogenous mills were studied using scanning electron microscope (SEM). More than 100 particles were measured to do the shape analysis of each mill product. The wettability behavior of ( γ c) a highly hydrophobic of talc mineral was determined by contact angle measurements and micro-flotation tests using a contact angle goniometer and EMDEE MicroFLOT test tube, respectively. On the other hand, wettability ( γ c) of quartz, which is a highly hydrophilic mineral, was determined by the micro-flotation method only. The results showed that the particles ground by rod mill gave higher flatness and elongation ratio, which meant higher hydrophobicity with lower γ c values in the separations by flotation method.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2004.03.209